So I'm a bit of a weirdo, I'm aware of mods like cookie monster that do all sorts of calculations to optimize purchasing decisions and whatnot, but I prefer to perform these calculations myself, and to that end have created a spreadsheet for calculating all the various relevant formulas. I've verified my formulas multiple times and confirmed with the in-game data, and everything lines up perfectly, everything except Grandmas.

I've double checked the formula from the wiki compared to my own (as an aside, the wiki formula is missing the brainy grandma multiplier), and I don't see any differences other than I am not using Reality Bending, which is already accounted for in my equation. My grandmas are lvl 2, I have every grandma upgrade, unshackled up to mooncandy, including script grannies, elderwort cookies, fortune#002, naughty list, both heavenly upgrades, and progressed to the end of the grandmapocalpyse. I've factored in Muridal being slotted in Jade and make sure to freeze the garden and that there are no golden cookie buffs when I compare, yet my Grandma's are consistently producing about 2.5% more than my calculated value says they should.

At this point I'm not sure what could be causing this discrepancy, the only thing I can think of is that when I first noticed it I had a single Cronerice plant growing in the garden, but it's been days since then.

Also, I just checked on a whim, and for some reason if I import my save from steam to web browser my CpS multiplier goes down from ~750 octillion% to ~550 octillion% (I don't have steamed or web cookies) Edit: Solved, I forgot about Heralds.

Is something bugged, or is there something stupidly obvious that I'm just missing?